Transportation vehicle traffic management

ABSTRACT

Disclosed aspects relate to transportation vehicle traffic management. A traffic controller detects a first traffic state parameter value for a first lane. In response to detecting the first traffic state parameter value, the traffic controller establishes a first broadcast of a first movement value (e.g., speed, acceleration, direction). The first movement value may indicate a first movement pattern for a first set of vehicles in the first lane. In response to establishing the first broadcast of the first movement value, the traffic controller detects a second traffic state parameter value for the first lane. In response to detecting the second traffic state parameter value the traffic controller modifies the first broadcast of the first movement value. The modified first movement value may indicate a second movement pattern for the first set of vehicles in the first lane.

BACKGROUND

This disclosure relates generally to computer systems and, moreparticularly, relates to transportation vehicle traffic management.

SUMMARY

In a computer implemented method for vehicle traffic management, atraffic controller detects a first traffic state parameter value for afirst lane. In response to detecting the first traffic state parametervalue, the traffic controller establishes a first broadcast of a firstmovement value. The first movement value indicates a first movementpattern for a first set of vehicles in the first lane. In response toestablishing the first broadcast of the first movement value, thetraffic controller detects a second traffic state parameter value forthe first lane. In response to detecting the second traffic stateparameter value the traffic controller modifies the first broadcast ofthe first movement value. The modified first movement value indicates asecond movement pattern for the first set of vehicles in the first lane.

In other illustrative embodiments, a computer program product comprisinga computer readable storage medium having a computer readable program isprovided. The computer readable program, when executed on a computingdevice, causes the computing device to perform various ones of, andcombinations of, the operations outlined above with regard to the methodillustrative embodiment.

In yet another illustrative embodiment, a system/apparatus is provided.The system/apparatus includes at least one processor and a memorycoupled to the at least one processor. The memory has instructionswhich, when executed by the at least one processor, cause the at leastone processor to perform various ones of, and combinations of, theoperations outlined above with regard to the method illustrativeembodiment.

These and other features of the present invention will be described in,or will become apparent to those of ordinary skill in the art in viewof, the following detailed description of example embodiments of thepresent invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings included in the present application are incorporated into,and form part of, the specification. They illustrate embodiments of thepresent disclosure and, along with the description, serve to explain theprinciples of the disclosure. The drawings are only illustrative ofcertain embodiments and do not limit the disclosure.

FIG. 1 depicts a high-level block diagram of a computer system forimplementing various embodiments of the present disclosure.

FIG. 2 is a flowchart illustrating a method for transportation vehicletraffic management according to embodiments.

FIG. 3 illustrates a system for transportation vehicle trafficmanagement according to embodiments.

FIG. 4 is a flowchart illustrating a method for transportation vehicletraffic management according to embodiments.

FIG. 5 illustrates a system for transportation vehicle trafficmanagement according to embodiments.

FIG. 6 is a flowchart illustrating a method for transportation vehicletraffic management according to embodiments.

FIG. 7 illustrates a system for transportation vehicle trafficmanagement according to embodiments.

FIG. 8 is a flowchart illustrating a method for transportation vehicletraffic management according to embodiments.

While the invention is amenable to various modifications and alternativeforms, specifics thereof have been shown by way of example in thedrawings and will be described in detail. It should be understood,however, that the intention is not to limit the invention to theparticular embodiments described. On the contrary, the intention is tocover all modifications, equivalents, and alternatives falling withinthe spirit and scope of the invention.

DETAILED DESCRIPTION

For transportation vehicle traffic management, the amount of data thatneeds to be managed is increasing. As data needing to be managedincreases, the need for management efficiency may increase.

Aspects of the disclosure relate to managing and controlling a set oftransportation vehicles in a set of movement patterns such assynchronously starting. A traffic light can have a logical state that isoutput as digital signal, such as a green light that is turned on andoff. A traffic controller may link with the traffic light. By the link,the traffic controller may obtain a real-time status of lights in thetraffic light, such as whether a red light or a green light is on. Thetraffic controller can communicate with the set of transportationvehicles such as to send or receive electronic messages from specifiedvehicles. As such, the traffic controller may identify a firsttransportation vehicle in a first lane as a first stopped vehicle at anintersection while also recognizing the first lane. Also, the trafficcontroller may broadcast a frequency synchronizing signal such as a SyncStart Signal (SSS) to a specified lane such as the first lane in orderto direct a set of transportation vehicles to synchronously move orstart acceleration as a platoon. The traffic controller may receivewarning exception messages sent from a transportation vehicle in a lane,and the traffic controller can respond in a dynamic fashion.

A vehicle module for a transportation vehicle may be connected with acentral computer system of the transportation vehicle. For example, thevehicle module may collect a set of distance/space information such asthat related to the vehicle and its surroundings such as other vehicles.The vehicle module can bi-directionally communicate with the trafficcontroller to determine a lane position for its transportation vehicle.One or more vehicle modules can configure bi-directional communicationto identify which lane the associated transportation vehicles are in.The traffic controller can configure sets of the transportation vehiclesas platoons based on their lanes. The vehicle module can control avehicle speed change in a very small time slice (e.g., at a nanosecondlevel). The time slice can be defined in the SSS. Such control mayinclude acceleration, braking, etc. As such, the vehicle module canaccelerate the transportation vehicle from zero in accordance with theSSS information. The vehicle module may receive status information withrespect to the transportation vehicle itself. Accordingly, when startingthe transportation vehicle, it can handle real-time exceptions triggeredby the vehicle hardware or the driver.

At an intersection on a roadway, after the traffic light turns green,each driver tends to start moving sequentially one-by-one after thefront vehicle moves. Such movement can be time-consuming and lessefficient than it needs to be. Reaction times to control vehiclemovement or start-up can vary and can lead to a negative experience forusers. In aggregate, a significant amount of green light time may bewasted on a consistent basis which can, at least at times, cause trafficjams at the intersection that are worse than they need to be ininstances of heavy traffic flow. Aspects of the disclosure may centrallycontrol the movement/starting process to let the transportation vehiclesin the same lane essentially synchronously move forward (similar to ahard-linked train) so as to have positive impacts on performance andefficiency (e.g., temporal benefits, energy/fuel benefits).

Consider the example that follows. In one lane, all vehicles couldsynchronously move forward at a speed of 5 kilometers per hour. T is thegreen-light time. L is the average safe length of one vehicle, whichincludes one vehicle length and an additional distance between anothervehicle. An entire platoon may be synchronously moved at once such that:INT((5000 meters/3600 seconds)*T/L). As such, In case T=60 seconds, L=7meters, then the number to pass intersection may be: INT((5000meters/3600 seconds)*60 seconds/7 meters)=9 vehicles.

Aspects of the disclosure may utilize a traffic controller to assist anautonomous vehicle to navigate an intersection in an efficient mannerwhile operating safely and securely. Autonomous vehicles are automobilesthat have the ability to operate and navigate without human input.Autonomous vehicles use sensors, such as radar, LIDAR, globalpositioning systems, and computer vision, to detect the vehicle'ssurroundings. Advanced computer control systems interpret the sensoryinput information to identify appropriate navigation paths, as well asobstacles and relevant signage. Autonomous vehicles may communicate withremote computer systems via wireless network connections and with oneanother using dedicated short range communications (DSRC).

Aspects of the disclosure can broadcast a predefined safe speed tocontrol a set of vehicles as a virtual platoon to speed-up travel in asynchronized manner. Transportation vehicles may be synchronouslymoved/started from a speed of zero at intersections. Lead vehicles mayor may not be utilized such that the front vehicle of a platoon may havevarying responsibility. Once the vehicles have passed the intersectionby a threshold distance, a broadcast of a movement value may expire ordeemed inapplicable such that the movement value or start speed need notbe maintained as such. Various lanes can be differentiated to connectrelated vehicles and control connected vehicles using a common movementvalue or speed. As such, distinct platoons may be configured fordifferent lanes. As such, each lane may have its own start-speed andsecurity distance based on various factors at the intersection (e.g.,historical accident information, weather conditions).

Aspects of the disclosure include a method, system, and computer programproduct for transportation vehicle traffic management. A trafficcontroller detects a first traffic state parameter value for a firstlane. In response to detecting the first traffic state parameter value,the traffic controller establishes a first broadcast of a first movementvalue (e.g., speed, acceleration, direction). The first movement valuemay indicate a first movement pattern for a first platoon of vehicles inthe first lane. In response to establishing the first broadcast of thefirst movement value, the traffic controller detects a second trafficstate parameter value for the first lane. In response to detecting thesecond traffic state parameter value the traffic controller modifies thefirst broadcast of the first movement value. The modified first movementvalue may indicate a second movement pattern for the first platoon ofvehicles in the first lane.

In embodiments, another set of operations may occur for a second lane.The traffic controller may detect a third traffic state parameter valuefor a second lane. In response to detecting the third traffic stateparameter value, the traffic controller can establish a second broadcastof a second movement value to indicate a third movement pattern for asecond platoon of vehicles in the second lane. In response toestablishing the second broadcast of the second movement value, thetraffic controller may detect a fourth traffic state parameter value forthe second lane. In response to detecting the fourth traffic stateparameter value, the traffic controller may modify the second broadcastof the second movement value to indicate a fourth movement pattern forthe second platoon of vehicles in the second lane.

In various embodiments in response to detecting the fourth traffic stateparameter for the second lane, the traffic controller may establish thefirst broadcast of the first movement value to indicate the firstmovement pattern for the first platoon of vehicles in the first lane.Altogether, transportation vehicle traffic management may be associatedwith performance or efficiency benefits (e.g., data security,application stability, speed, flexibility, load balancing,responsiveness, resource usage, productivity). Aspects may saveresources such as bandwidth, processing, or memory.

Turning now to the figures, FIG. 1 depicts a high-level block diagram ofa computer system for implementing various embodiments of the presentdisclosure, consistent with various embodiments. The mechanisms andapparatus of the various embodiments disclosed herein apply equally toany appropriate computing system. The major components of the computersystem 100 include one or more processors 102, a memory 104, a terminalinterface 112, a storage interface 114, an I/O (Input/Output) deviceinterface 116, and a network interface 118, all of which arecommunicatively coupled, directly or indirectly, for inter-componentcommunication via a memory bus 106, an I/O bus 108, bus interface unit109, and an I/O bus interface unit 110.

The computer system 100 may contain one or more general-purposeprogrammable central processing units (CPUs) 102A and 102B, hereingenerically referred to as the processor 102. In embodiments, thecomputer system 100 may contain multiple processors; however, in certainembodiments, the computer system 100 may alternatively be a single CPUsystem. Each processor 102 executes instructions stored in the memory104 and may include one or more levels of on-board cache.

In embodiments, the memory 104 may include a random-access semiconductormemory, storage device, or storage medium (either volatile ornon-volatile) for storing or encoding data and programs. In certainembodiments, the memory 104 represents the entire virtual memory of thecomputer system 100, and may also include the virtual memory of othercomputer systems coupled to the computer system 100 or connected via anetwork. The memory 104 can be conceptually viewed as a singlemonolithic entity, but in other embodiments the memory 104 is a morecomplex arrangement, such as a hierarchy of caches and other memorydevices. For example, memory may exist in multiple levels of caches, andthese caches may be further divided by function, so that one cache holdsinstructions while another holds non-instruction data, which is used bythe processor or processors. Memory may be further distributed andassociated with different CPUs or sets of CPUs, as is known in any ofvarious so-called non-uniform memory access (NUMA) computerarchitectures.

The memory 104 may store all or a portion of the various programs,modules and data structures for processing data transfers as discussedherein. For instance, the memory 104 can store a transportation vehicletraffic management application 150. In embodiments, the transportationvehicle traffic management application 150 may include instructions orstatements that execute on the processor 102 or instructions orstatements that are interpreted by instructions or statements thatexecute on the processor 102 to carry out the functions as furtherdescribed below. In certain embodiments, the transportation vehicletraffic management application 150 is implemented in hardware viasemiconductor devices, chips, logical gates, circuits, circuit cards,and/or other physical hardware devices in lieu of, or in addition to, aprocessor-based system. In embodiments, the transportation vehicletraffic management application 150 may include data in addition toinstructions or statements.

The computer system 100 may include a bus interface unit 109 to handlecommunications among the processor 102, the memory 104, a display system124, and the I/O bus interface unit 110. The I/O bus interface unit 110may be coupled with the I/O bus 108 for transferring data to and fromthe various I/O units. The I/O bus interface unit 110 communicates withmultiple I/O interface units 112, 114, 116, and 118, which are alsoknown as I/O processors (IOPs) or I/O adapters (IOAs), through the I/Obus 108. The display system 124 may include a display controller, adisplay memory, or both. The display controller may provide video,audio, or both types of data to a display device 126. The display memorymay be a dedicated memory for buffering video data. The display system124 may be coupled with a display device 126, such as a standalonedisplay screen, computer monitor, television, or a tablet or handhelddevice display. In one embodiment, the display device 126 may includeone or more speakers for rendering audio. Alternatively, one or morespeakers for rendering audio may be coupled with an I/O interface unit.In alternate embodiments, one or more of the functions provided by thedisplay system 124 may be on board an integrated circuit that alsoincludes the processor 102. In addition, one or more of the functionsprovided by the bus interface unit 109 may be on board an integratedcircuit that also includes the processor 102.

The I/O interface units support communication with a variety of storageand I/O devices. For example, the terminal interface unit 112 supportsthe attachment of one or more user I/O devices 120, which may includeuser output devices (such as a video display device, speaker, and/ortelevision set) and user input devices (such as a keyboard, mouse,keypad, touchpad, trackball, buttons, light pen, or other pointingdevice). A user may manipulate the user input devices using a userinterface, in order to provide input data and commands to the user I/Odevice 120 and the computer system 100, and may receive output data viathe user output devices. For example, a user interface may be presentedvia the user I/O device 120, such as displayed on a display device,played via a speaker, or printed via a printer.

The storage interface 114 supports the attachment of one or more diskdrives or direct access storage devices 122 (which are typicallyrotating magnetic disk drive storage devices, although they couldalternatively be other storage devices, including arrays of disk drivesconfigured to appear as a single large storage device to a hostcomputer, or solid-state drives, such as flash memory). In someembodiments, the storage device 122 may be implemented via any type ofsecondary storage device. The contents of the memory 104, or any portionthereof, may be stored to and retrieved from the storage device 122 asneeded. The I/O device interface 116 provides an interface to any ofvarious other I/O devices or devices of other types, such as printers orfax machines. The network interface 118 provides one or morecommunication paths from the computer system 100 to other digitaldevices and computer systems; these communication paths may include,e.g., one or more networks 130.

Although the computer system 100 shown in FIG. 1 illustrates aparticular bus structure providing a direct communication path among theprocessors 102, the memory 104, the bus interface 109, the displaysystem 124, and the I/O bus interface unit 110, in alternativeembodiments the computer system 100 may include different buses orcommunication paths, which may be arranged in any of various forms, suchas point-to-point links in hierarchical, star or web configurations,multiple hierarchical buses, parallel and redundant paths, or any otherappropriate type of configuration. Furthermore, while the I/O businterface unit 110 and the I/O bus 108 are shown as single respectiveunits, the computer system 100 may, in fact, contain multiple I/O businterface units 110 and/or multiple I/O buses 108. While multiple I/Ointerface units are shown, which separate the I/O bus 108 from variouscommunications paths running to the various I/O devices, in otherembodiments, some or all of the I/O devices are connected directly toone or more system I/O buses.

In various embodiments, the computer system 100 is a multi-usermainframe computer system, a single-user system, or a server computer orsimilar device that has little or no direct user interface, but receivesrequests from other computer systems (clients). In other embodiments,the computer system 100 may be implemented as a desktop computer,portable computer, laptop or notebook computer, tablet computer, pocketcomputer, telephone, smart phone, or any other suitable type ofelectronic device.

FIG. 1 depicts several major components of the computer system 100.Individual components, however, may have greater complexity thanrepresented in FIG. 1, components other than or in addition to thoseshown in FIG. 1 may be present, and the number, type, and configurationof such components may vary. Several particular examples of additionalcomplexity or additional variations are disclosed herein; these are byway of example only and are not necessarily the only such variations.The various program components illustrated in FIG. 1 may be implemented,in various embodiments, in a number of different manners, includingusing various computer applications, routines, components, programs,objects, modules, data structures, etc., which may be referred to hereinas “software,” “computer programs,” or simply “programs.”

FIG. 2 is a flowchart illustrating a method 200 for transportationvehicle (e.g., one or more trucks, tractor-trailers, buses, cars,motorcycles, tractors, all terrain vehicles, golf carts, bicycles,automobiles, or the like) traffic management according to embodiments.Transportation vehicle traffic management may be used in an autonomousor assisted driving environment (e.g., self-driving vehicle forpassengers or cargo). The method 200 may begin at block 201. Inembodiments at block 204, the operational steps such as the detecting,the establishing, the detecting, and the modifying each occur in anautomated fashion without user intervention or manual action (e.g.,using automated computing machinery, fully machine-driven without manualstimuli). The automated operational steps may be performed by a trafficcontroller (e.g., as part of a traffic control system).

In various embodiments, the traffic controller can sense a first platoonof vehicles in a first lane at block 208. The traffic controller cansense (e.g., using a sensor such as a visual sensor, motion sensor,still image camera, video camera, or the like) a second platoon ofvehicles in a second lane, a third platoon of vehicles in a third lane,etc. Sensing can include discovering, identifying, detecting,recognizing, or the like. A platoon of vehicles can include one or moretrucks, tractor-trailers, cars, motorcycles, tractors, all terrainvehicles, golf carts, bicycles, automobiles, or the like. The platoon ofvehicles may be aligned such as to continue on a given route (e.g.,straight ahead, turn right, turn left, curve while maintaining theirlane). A lane can include a space or area configured for travel by atransportation vehicle such as within lines (e.g., solid lines,dashed/dotted lines) that define the space or area as a route or path,though lines may or may not be used.

In certain embodiments, a communication of a lane position may be madeat block 209. The communication may be between the traffic controllerand a vehicle module. Communicating can include transmitting, providing,publishing, routing, sending, presenting, outputting, or the like. Thelane position can indicate a specific lane (e.g., first lane) or anorder/sequence in a platoon (e.g., third vehicle of the platoon). Thevehicle module may be in or for the vehicle whose position is beingdescribed (e.g., a module located in a car in the second lane having thefourth position from the front/stop-line/intersection). The vehiclemodule can connect to a central computing system of the vehicle. Thetraffic controller and the vehicle module may communicate via variouscommunication linkages (e.g., radio waves or the like) and may have athird-party intermediary, in some embodiments, such that information isintercepted by a cloud-based traffic intersection management softwareengine which oversees a given intersection.

At block 210, a first traffic state parameter value for a first lane(e.g., a traffic/driving/movement lane for one or more transportationvehicles) is detected. Traffic state parameter values may be detected bythe traffic controller. Detecting can include receiving (e.g., from anapplication, from a computer), sensing (e.g., in a multidimensionalarray, in an application), observing (e.g., based on a physical sensor),or a like identification operation. Traffic state parameter values maycorrespond to, apply to, or be directed to one or more lanes (e.g., afirst lane only, first and second lanes). A traffic state parametervalue can indicate traffic to go, yield, be cautious, stop, turn, notturn, or the like. For example, traffic state parameter values may mapto a green light (e.g., go), a yellow light (e.g., be cautious travelingthrough the intersection), a red light (e.g., stop), a flashing greenturn arrow, a flashing yellow turn arrow, a flashing yellow, a flashingred, or the like. For instance, a “1” for a first traffic stateparameter value may indicate to go and map to a green light. Variousother values or signals may be utilized.

At block 230, a first broadcast of a first movement value may beestablished to indicate a first movement pattern for a first platoon ofvehicles in the first lane. The first broad cast may beestablished/initiated by the traffic controller. Establishing caninclude initiating performance/execution, generating, compiling,constructing, assembling, outputting, forming, organizing, providing,presenting, configuring, introducing, or the like. The first broadcastmay be established/initiated in response to detecting the first trafficstate parameter value. A broadcast can include a transmission,publication, communication, output, presentation, conveyance, or a likerouting/sending operation in a wireless manner or otherwise. A platoonof vehicles in a lane can include a threshold number of automobileswhich may be pieced-together via a curve (e.g., a straight line of tencars).

One or more movement values can indicate one or more movement patterns.A movement value may include a speed value (e.g., 0 miles per hour, 5kilometers per hour, 10 miles per hour) at block 231. A movement valuecan include an acceleration value (e.g., 10 feet per second per second)at block 232. A movement value may include a directional value (e.g.,due North, 135 degrees, straight line, curved) at block 233. A movementpattern may be a combination of movement values (e.g., go straight aheadat a predefined speed such as 15 miles per hour). The movement patterncan instruct how the platoon of vehicles in the lane is to travel orchange location.

In embodiments, the first broadcast can indicate to change a set ofspeed values of the first platoon of vehicles in the first lane at block236. For example, the first broadcast may communicate (e.g., to thefirst platoon of vehicles) a speed value of five miles per hour for twoseconds and then a speed value of ten miles per hour for the next twoseconds. Accordingly, the set of speed value may indicate accelerationor deceleration. In various embodiments, the set of speed valuesincludes a speed of zero at block 237. For instance, the first broadcastmay target or maintain a stopped position for the first platoon ofvehicles. While cross-traffic is moving, the first broadcast may includethe speed of zero. In embodiments, the first broadcast includes acommunicative connection of the traffic controller with the firstplatoon of vehicles in the first lane at block 239. As such, thecommunicative connection (e.g., one-way, two-way) can include more thanone vehicle (such as more than just a lead vehicle) and could beconnected with each vehicle in the lane within a threshold distance(e.g., cars within the first 50 feet). Various possibilities forbroadcasts are considered.

At block 250, a second traffic state parameter value for the first laneis detected. The second traffic state parameter value may be detected bythe traffic controller in response to establishing the first broadcastof the first movement value (e.g., subsequent to or during the firstbroadcast of the first movement value). For example, the detection mayresult from a traffic signal changing from stop/red (e.g., a firsttraffic state parameter value) to go/green (e.g., the second trafficstate parameter value), or the like. Aspects may be similar or the sameas the traffic controller detecting the first traffic state parametervalue for the first lane. Various combinations of changes between thefirst and second (or third, fourth, etc.) traffic state parameter valuesare possible.

At block 270, the first broadcast of the first movement value ismodified to indicate a second movement pattern for the first platoon ofvehicles in the first lane. The modification may be made by the trafficcontroller in response to detecting the second traffic state parametervalue. Modifying can include changing, altering, shifting, updating, orthe like. The modification may be made in a dynamic fashion (e.g., inreal-time, on-the-fly). For example, the traffic controller may beinitially broadcasting a movement value of twenty-five miles per hour toindicate a movement pattern of moving vehicles in a manner straightthrough the intersection and then dynamically adjust the movement valueto zero miles per hour to indicate a movement pattern of stoppedvehicles. The broadcast may remain constant (or at least relativelyconstant) with the movement value of the broadcast changing so that themovement pattern adjusts entirely. As such, a single traffic controllercan manage an entire intersection having multiple lanes in a pluralityof directions by having a plurality of broadcasts of movement valueswhich can be modified to indicate/establish various movement patternsfor multiple platoons of vehicles in multiple lanes. In certainembodiments, different platoons of vehicles in a single lane may havedifferent movement values (e.g., the first thirty cars are to proceedthrough the intersection and the vehicles thereafter are to replace thethirty vehicles in front of them in line).

In embodiments, a triggering communication may be received at block 275.The triggering communication can be received by the traffic controllerfrom a transportation vehicle. Receiving can include detecting, sensing,or accepting as an input. The triggering communication can include awarning exception message related to a small distance between vehicles,a person walking between a gap in vehicles, a mechanical warning in avehicle, a steering wheel being turned beyond a threshold, a brakingoperation which exceeds a threshold, a human interruption, or the like.The traffic controller may receive the triggering communication from anyvehicle in any lane. For example, it may be a vehicle of the firstplatoon in the first lane, or an emergency vehicle in any of a pluralityof lanes configured in a same direction. In response to receiving thetriggering communication, the first broadcast of the first movementvalue may be modified. The modification can be made in a dynamic fashionby the traffic controller. Accordingly, the traffic controller canmodify movement patterns in real-time using various movement values. Assuch, positive impacts on safety, performance, and efficiency may berealized using aspects described herein.

In embodiments, a third traffic state parameter value for a second lanemay be detected by the traffic controller. In response to detecting thethird traffic state parameter value, the traffic controller mayestablish a second broadcast of a second movement value to indicate athird movement pattern for a second platoon of vehicles in the secondlane. In response to establishing the second broadcast of the secondmovement value, a fourth traffic state parameter value for the secondlane can be detected by the traffic controller. In response to detectingthe fourth traffic state parameter value, the traffic controller maymodify the second broadcast of the second movement value to indicate afourth movement pattern for the second platoon of vehicles in the secondlane. Accordingly, a single traffic controller may manager a pluralityof lanes. For instance, the third traffic state parameter value may be“3” which correlates to a left-turn green arrow (perhaps while otherlanes are red and being broadcast a “2” value). As such, the thirdmovement pattern for the second platoon of vehicles in the second lanemay indicate for the transportation vehicles to go at an arc to turnleft at given speed such as ten miles per hour. The fourth traffic stateparameter value (e.g., “4”) may correlate to a red left-turn arrow whichmay occur while other lanes are green. As such, the fourth movementpattern for the second platoon of vehicles in the second lane mayindicate for the transportation vehicles to no longer go at an arc toturn left at ten miles per hour but instead to stop entirely (or stop ifit has not yet entered the intersection). Various possibilities areconsidered including for lanes in parallel to one another (in the sameor opposite directions), perpendicular to one another, and various othercombinations including roundabouts and the like.

In embodiments, the first broadcast of the first movement value toindicate the first movement pattern for the first platoon of vehicles inthe first lane may be established by the traffic controller in responseto detecting the fourth traffic state parameter for the second lane. Inembodiments, a third broadcast of a fifth movement value to indicate afifth movement pattern for a third platoon of vehicles in a third lanemay be established by the traffic controller in response to detectingthe fourth traffic state parameter for the second lane. For example, astop of transportation vehicles in the second lane may be detectedthereby ceasing left-turns. Accordingly, a “go” may be broadcast for thefirst/third lane (e.g., for traffic coming head-on with respect to thesecond lane). Various other possibilities and combinations areconsidered, and the examples are illustrative.

In certain embodiments, a usage assessment may be generated with respectto the transportation vehicle traffic management or the trafficcontroller. Use of the transportation vehicle traffic management may bemetered at block 297. For example, service-life extensions may bemeasured, safety-factors may be considered, overall economic impact maybe accounted for, functional up-time relative to a benchmark (e.g.,historical functional up-time) can be evaluated, etc. Such factors maycorrelate to charge-back or cost burdens which can be defined in-advance(e.g., utilizing usage tiers) or scaled with respect to a market-rate.An invoice or bill presenting the usage, rendered services, fee, andother payment terms may be generated based on the metered use at block298. The generated invoice may be provided (e.g., displayed in a dialogbox, sent or transferred by e-mail, text message, initiated fortraditional mail) to the user for notification, acknowledgment, orpayment.

Method 200 concludes at block 299. Aspects of method 200 may provideperformance or efficiency benefits with respect to transportationvehicle traffic management. For example, aspects of method 200 mayinclude positive impacts on traffic flow, resource usage, speed, orproductivity with respect to transportation vehicle traffic management.In embodiments, performance or efficiency benefits when using a trafficcontroller to manage transportation vehicle traffic may occur (e.g.,speed, flexibility, load balancing, responsiveness, productivity).

FIG. 3 illustrates a system 300 for transportation vehicle trafficmanagement according to embodiments. The system 300 can include atraffic controller 310 which may be referred to as a Lane ControlMonitor (LCM). The lane control module may be linked with a trafficlight or the like. The traffic light may have a logical state output ina digital signal such as whether a green light is turned-on. The system300 may have a platoon of vehicles 340. One or more of the vehicles maybe equipped with a set of vehicle modules. A first vehicle module 320may be referred to as a Sync Start Manager (SSM). A second vehiclemodule 330 may be referred to as a distance monitor (e.g., radar). Thesecond vehicle module 330 can collect a set of spatial relationships.For example, the second vehicle module 330 may be used to gather variousdistances between various transportation vehicles. Such information maybe transmitted to or retrieved by the traffic controller 310.

In embodiments, the second vehicle module 330 may be used to configuredistances between vehicles in the platoon of vehicles 340. For example,the set of vehicle modules may be used to construct, generate, or builda fixed platoon of vehicles. For instance, the platoon of vehicles 340may be fixed-together such that each vehicle will move together at asame speed for a temporal period. The same speed may be that speed valuereceived from a broadcast by the traffic controller 310. Also, theplatoon of vehicles 340 may be fixed-together such that they are keptapart at one or more distances configured using the second vehiclemodule 330. In various embodiments, the distances between vehicles ofthe platoon are the same. In certain embodiments, distances betweenvarious vehicles of the platoon are specifically configured using thesecond vehicle modules. For example, larger vehicles such astractor-trailers may trail a small vehicle such as a bicycle by a longerdistance than a bicycle would trail a tractor-trailer. In variousembodiments, a vehicle module on a vehicle may determine a speed of thevehicle for a temporal period (e.g., due to an emergency vehiclespresence in the area, for safety reasons, to override a broadcast speedvalue when being tailgated by a trailing vehicle for longer than athreshold temporal period).

FIG. 4 is a flowchart illustrating a method 400 for transportationvehicle traffic management according to embodiments. The method 400illustrates how a transportation vehicle can speed-up (from a stop) inone period. At block 410, the traffic controller detects a first trafficstate parameter value (e.g., LCM receives the message of green light).At block 420, the traffic controller broadcasts a first movement valueto indicate a first movement pattern for a first platoon of vehicles inthe first lane (e.g., LCM broadcasts a Sync Start Signal (SSS) to thespecified lane). The SSS may include a command message to informvehicles to synchronously move. At block 430, the transportation vehiclemay use its vehicle module to operate the vehicle in accordance with thebroadcast, movement value, and movement pattern (e.g., SSM in eachvehicle receives SSS, checks its status, and speeds-up to apredefined/received speed). At block 440, the traffic controller detectsa second traffic state parameter value (e.g., LCM receives the messageof red light). At block 450, the traffic controller modifies thebroadcast (e.g., LCM stops broadcast of the SSS). The broadcast may beterminated in response to the traffic controller receiving an exceptionmessage (e.g., a human interruption, an emergency, a triggering eventoccurs).

FIG. 5 illustrates a system for transportation vehicle trafficmanagement according to embodiments. The system may relate to continuousor periodical signals which can control transportation vehicleacceleration and the like. The system can include a broadcast formularepresented by diagram 500 and speed formula represented by diagram 550.Diagram 500 illustrates a set of data (M) (e.g., a movement value) whichcan be broadcast in real-time for a predefined constant period (P) ofthe SSS. Accordingly, as represented by diagram 500, SSS=M whennP<t<(n+1)P, SSS=null when (n+1)P<t<(n+2)P, and n=0, 2, 4, . . . .Diagram 550 illustrates a vehicle speed (V), an acceleration (A) whichis transmitted with SSS, t is a current time relative to the beginningtime point of the initial SSS, and S is a safe speed transmitted withSSS. Accordingly, if V<S then V=A*(t−nP/2) when nP<t<(n+1)P and n=0, 1,2, 3, . . . ; otherwise, V=a vehicle driver-controlled speed.

FIG. 6 is a flowchart illustrating a method 600 for transportationvehicle traffic management according to embodiments. The method 600 mayillustrate operations within an acceleration period when the SSM catchesSSS=M. The operations may execute in time periods 0˜P, 2P˜3P, 4P˜5P,etc. as shown in FIG. 5. Accordingly, the time usage of the operationsis less than or equal to P. It is determined whether SSM can receive aSSS refresh at block 610. At block 620, it is determined whether anexception was/was not received by the SSM. If the SSM does not receive amovement value for more than two periods, then the driver of thetransportation vehicle may be provided with full control of thetransportation vehicle (or at least speed control). At block 630, it isdetermined whether the transportation vehicle is moving (e.g., started,not stopped). If the transportation vehicle was not moving (e.g., enginenot running) at block 630, the transportation vehicle is started formovement (e.g., start engine) at block 640. At block 650, it isdetermined whether the transportation vehicle is moving at a safe speeddefined in the SSS. If the transportation vehicle is not moving at thesafe speed, the SSM changes the speed of the transportation vehicle(e.g., speeds-up a small amount of speed, speeds-up for a small timeperiod, slows-down, slows-down by not accelerating) at block 660.

FIG. 7 illustrates a system 700 for transportation vehicle trafficmanagement according to embodiments. The system 700 depicts a singletraffic controller 710 managing a plurality of lanes and a plurality ofplatoons of transportation vehicles. The traffic controller 710 mayutilize dedicated short range communications (DSRC) which is a two-wayshort-to-medium-range wireless communications capability that permitsvery high data transmission in communications-based active safetyapplications. The traffic controller 710 may indicate, flag, or mark thelanes as a first lane (Lane-I) and a second lane (Lane-II). A logicallinkage to a traffic light 720 may exist with respect to the trafficcontroller 710. Altogether, aspects may facilitate constructing aplurality of platoons of transportation vehicles in a plurality oflanes. Other possibilities (e.g., using multiple traffic controllers)are contemplated.

FIG. 8 is a flowchart illustrating a method 800 for transportationvehicle traffic management according to embodiments. The method 800 mayrelate to constructing a platoon of transportation vehicles. At block810, a first transportation vehicle (vehicle A) may stop as a firstvehicle in a first lane (such as Lane-I in FIG. 7). At block 820, thetraffic controller (LCM) may identify, detect, or recognize the firsttransportation vehicle. The LCM may communicate with the SSM of vehicleA to assign a first lane identifier for the first lane at block 830. Asecond transportation vehicle (vehicle B) may stop behind the firsttransportation vehicle at block 840. A first vehicle module in the firsttransportation vehicle may communicate with a second vehicle module inthe second transportation vehicle to provide the first lane identifierfor the first lane at block 850. At block 860, the second vehicle modulein the second transportation vehicle can provide the first laneidentifier for the first lane to one or more transportation vehicleswhich stop behind the second transportation vehicle in the first lane.

In addition to embodiments described above, other embodiments havingfewer operational steps, more operational steps, or differentoperational steps are contemplated. Also, some embodiments may performsome or all of the above operational steps in a different order. Themodules are listed and described illustratively according to anembodiment and are not meant to indicate necessity of a particularmodule or exclusivity of other potential modules (or functions/purposesas applied to a specific module).

In the foregoing, reference is made to various embodiments. It should beunderstood, however, that this disclosure is not limited to thespecifically described embodiments. Instead, any combination of thedescribed features and elements, whether related to differentembodiments or not, is contemplated to implement and practice thisdisclosure. Many modifications and variations may be apparent to thoseof ordinary skill in the art without departing from the scope and spiritof the described embodiments. Furthermore, although embodiments of thisdisclosure may achieve advantages over other possible solutions or overthe prior art, whether or not a particular advantage is achieved by agiven embodiment is not limiting of this disclosure. Thus, the describedaspects, features, embodiments, and advantages are merely illustrativeand are not considered elements or limitations of the appended claimsexcept where explicitly recited in a claim(s).

The present invention may be a system, a method, and/or a computerprogram product. The computer program product may include a computerreadable storage medium (or media) having computer readable programinstructions thereon for causing a processor to carry out aspects of thepresent invention.

The computer readable storage medium can be a tangible device that canretain and store instructions for use by an instruction executiondevice. The computer readable storage medium may be, for example, but isnot limited to, an electronic storage device, a magnetic storage device,an optical storage device, an electromagnetic storage device, asemiconductor storage device, or any suitable combination of theforegoing. A non-exhaustive list of more specific examples of thecomputer readable storage medium includes the following: a portablecomputer diskette, a hard disk, a random access memory (RAM), aread-only memory (ROM), an erasable programmable read-only memory (EPROMor Flash memory), a static random access memory (SRAM), a portablecompact disc read-only memory (CD-ROM), a digital versatile disk (DVD),a memory stick, a floppy disk, a mechanically encoded device such aspunch-cards or raised structures in a groove having instructionsrecorded thereon, and any suitable combination of the foregoing. Acomputer readable storage medium, as used herein, is not to be construedas being transitory signals per se, such as radio waves or other freelypropagating electromagnetic waves, electromagnetic waves propagatingthrough a waveguide or other transmission media (e.g., light pulsespassing through a fiber-optic cable), or electrical signals transmittedthrough a wire.

Computer readable program instructions described herein can bedownloaded to respective computing/processing devices from a computerreadable storage medium or to an external computer or external storagedevice via a network, for example, the Internet, a local area network, awide area network and/or a wireless network. The network may comprisecopper transmission cables, optical transmission fibers, wirelesstransmission, routers, firewalls, switches, gateway computers and/oredge servers. A network adapter card or network interface in eachcomputing/processing device receives computer readable programinstructions from the network and forwards the computer readable programinstructions for storage in a computer readable storage medium withinthe respective computing/processing device.

Computer readable program instructions for carrying out operations ofthe present invention may be assembler instructions,instruction-set-architecture (ISA) instructions, machine instructions,machine dependent instructions, microcode, firmware instructions,state-setting data, or either source code or object code written in anycombination of one or more programming languages, including an objectoriented programming language such as Java, Smalltalk, C++or the like,and conventional procedural programming languages, such as the “C”programming language or similar programming languages. The computerreadable program instructions may execute entirely on the user'scomputer, partly on the user's computer, as a stand-alone softwarepackage, partly on the user's computer and partly on a remote computeror entirely on the remote computer or server. In the latter scenario,the remote computer may be connected to the user's computer through anytype of network, including a local area network (LAN) or a wide areanetwork (WAN), or the connection may be made to an external computer(for example, through the Internet using an Internet Service Provider).In some embodiments, electronic circuitry including, for example,programmable logic circuitry, field-programmable gate arrays (FPGA), orprogrammable logic arrays (PLA) may execute the computer readableprogram instructions by utilizing state information of the computerreadable program instructions to personalize the electronic circuitry,in order to perform aspects of the present invention.

Aspects of the present invention are described herein with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems), and computer program products according to embodiments of theinvention. It will be understood that each block of the flowchartillustrations and/or block diagrams, and combinations of blocks in theflowchart illustrations and/or block diagrams, can be implemented bycomputer readable program instructions.

These computer readable program instructions may be provided to aprocessor of a general purpose computer, special purpose computer, orother programmable data processing apparatus to produce a machine, suchthat the instructions, which execute via the processor of the computeror other programmable data processing apparatus, create means forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks. These computer readable program instructionsmay also be stored in a computer readable storage medium that can directa computer, a programmable data processing apparatus, and/or otherdevices to function in a particular manner, such that the computerreadable storage medium having instructions stored therein comprises anarticle of manufacture including instructions which implement aspects ofthe function/act specified in the flowchart and/or block diagram blockor blocks.

The computer readable program instructions may also be loaded onto acomputer, other programmable data processing apparatus, or other deviceto cause a series of operational steps to be performed on the computer,other programmable apparatus or other device to produce a computerimplemented process, such that the instructions which execute on thecomputer, other programmable apparatus, or other device implement thefunctions/acts specified in the flowchart and/or block diagram block orblocks.

Embodiments according to this disclosure may be provided to end-usersthrough a cloud-computing infrastructure. Cloud computing generallyrefers to the provision of scalable computing resources as a serviceover a network. More formally, cloud computing may be defined as acomputing capability that provides an abstraction between the computingresource and its underlying technical architecture (e.g., servers,storage, networks), enabling convenient, on-demand network access to ashared pool of configurable computing resources that can be rapidlyprovisioned and released with minimal management effort or serviceprovider interaction. Thus, cloud computing allows a user to accessvirtual computing resources (e.g., storage, data, applications, and evencomplete virtualized computing systems) in “the cloud,” without regardfor the underlying physical systems (or locations of those systems) usedto provide the computing resources.

Typically, cloud-computing resources are provided to a user on apay-per-use basis, where users are charged only for the computingresources actually used (e.g., an amount of storage space used by a useror a number of virtualized systems instantiated by the user). A user canaccess any of the resources that reside in the cloud at any time, andfrom anywhere across the Internet. In context of the present disclosure,a user may access applications or related data available in the cloud.For example, the nodes used to create a stream computing application maybe virtual machines hosted by a cloud service provider. Doing so allowsa user to access this information from any computing system attached toa network connected to the cloud (e.g., the Internet).

Embodiments of the present disclosure may also be delivered as part of aservice engagement with a client corporation, nonprofit organization,government entity, internal organizational structure, or the like. Theseembodiments may include configuring a computer system to perform, anddeploying software, hardware, and web services that implement, some orall of the methods described herein. These embodiments may also includeanalyzing the client's operations, creating recommendations responsiveto the analysis, building systems that implement portions of therecommendations, integrating the systems into existing processes andinfrastructure, metering use of the systems, allocating expenses tousers of the systems, and billing for use of the systems.

The flowchart and block diagrams in the Figures illustrate thearchitecture, functionality, and operation of possible implementationsof systems, methods, and computer program products according to variousembodiments of the present invention. In this regard, each block in theflowchart or block diagrams may represent a module, segment, or portionof instructions, which comprises one or more executable instructions forimplementing the specified logical function(s). In some alternativeimplementations, the functions noted in the block may occur out of theorder noted in the figures. For example, two blocks shown in successionmay, in fact, be executed substantially concurrently, or the blocks maysometimes be executed in the reverse order, depending upon thefunctionality involved. It will also be noted that each block of theblock diagrams and/or flowchart illustration, and combinations of blocksin the block diagrams and/or flowchart illustration, can be implementedby special purpose hardware-based systems that perform the specifiedfunctions or acts or carry out combinations of special purpose hardwareand computer instructions.

While the foregoing is directed to exemplary embodiments, other andfurther embodiments of the invention may be devised without departingfrom the basic scope thereof, and the scope thereof is determined by theclaims that follow. The descriptions of the various embodiments of thepresent disclosure have been presented for purposes of illustration, butare not intended to be exhaustive or limited to the embodimentsdisclosed. Many modifications and variations will be apparent to thoseof ordinary skill in the art without departing from the scope and spiritof the described embodiments. The terminology used herein was chosen toexplain the principles of the embodiments, the practical application ortechnical improvement over technologies found in the marketplace, or toenable others of ordinary skill in the art to understand the embodimentsdisclosed herein.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the variousembodiments. As used herein, the singular forms “a,” “an,” and “the” areintended to include the plural forms as well, unless the context clearlyindicates otherwise. “Set of,” “group of,” “bunch of,” etc. are intendedto include one or more. It will be further understood that the terms“includes” and/or “including,” when used in this specification, specifythe presence of the stated features, integers, steps, operations,elements, and/or components, but do not preclude the presence oraddition of one or more other features, integers, steps, operations,elements, components, and/or groups thereof. In the previous detaileddescription of exemplary embodiments of the various embodiments,reference was made to the accompanying drawings (where like numbersrepresent like elements), which form a part hereof, and in which isshown by way of illustration specific exemplary embodiments in which thevarious embodiments may be practiced. These embodiments were describedin sufficient detail to enable those skilled in the art to practice theembodiments, but other embodiments may be used and logical, mechanical,electrical, and other changes may be made without departing from thescope of the various embodiments. In the previous description, numerousspecific details were set forth to provide a thorough understanding thevarious embodiments. But, the various embodiments may be practicedwithout these specific details. In other instances, well-known circuits,structures, and techniques have not been shown in detail in order not toobscure embodiments.

What is claimed is:
 1. A computer program product for transportationvehicle traffic management, the computer program product comprising anon-transitory computer readable storage medium having programinstructions embodied therewith the program instructions executable by aprocessor to cause the processor to perform a method comprising:detecting, by a traffic controller, a first traffic state parametervalue for a first lane; establishing, by the traffic controller inresponse to detecting the first traffic state parameter value, a firstbroadcast of a first movement value to indicate a first movement patternfor a first set of vehicles in the first lane; detecting, by the trafficcontroller in response to establishing the first broadcast of the firstmovement value, a second traffic state parameter value for the firstlane; modifying, by the traffic controller in response to detecting thesecond traffic state parameter value, the first broadcast of the firstmovement value to indicate a second movement pattern for the first setof vehicles in the first lane; detecting, by the traffic controller, athird traffic state parameter value for a second lane; establishing, bythe traffic controller in response to detecting the third traffic stateparameter value, a second broadcast of a second movement value toindicate a third movement pattern for a second set of vehicles in thesecond lane; detecting, by the traffic controller in response toestablishing the second broadcast of the second movement value, a fourthtraffic state parameter value for the second lane; and modifying, by thetraffic controller in response to detecting the fourth traffic stateparameter value, the second broadcast of the second movement value toindicate a fourth movement pattern for the second set of vehicles in thesecond lane.
 2. The computer program product of claim 1, furthercomprising: establishing, by the traffic controller in response todetecting the fourth traffic state parameter for the second lane, thefirst broadcast of the first movement value to indicate the firstmovement pattern for the first set of vehicles in the first lane.
 3. Thecomputer program product of claim 1, wherein the first movement valueincludes a speed value.
 4. The computer program product of claim 1,wherein the first movement value includes an acceleration value.
 5. Thecomputer program product of claim 1, wherein the first movement valueincludes a directional value.
 6. The computer program product of claim1, wherein the first broadcast indicates to change a set of speed valuesof the first set of vehicles in the first lane.
 7. The computer programproduct of claim 6, wherein the set of speed values includes a speed ofzero.
 8. The computer program product of claim 1, wherein the firstbroadcast includes a communicative connection of the traffic controllerwith the first set of vehicles in the first lane.
 9. The computerprogram product of claim 1, further comprising: sensing, by the trafficcontroller, the first set of vehicles in the first lane.
 10. Thecomputer program product of claim 1, further comprising: receiving, bythe traffic controller from a transportation vehicle, a triggeringcommunication; and modifying, in a dynamic fashion by the trafficcontroller in response to receiving the triggering communication, thefirst broadcast of the first movement value.
 11. The computer programproduct of claim 1, further comprising: collecting, by a vehicle module,a set of spatial relationships.
 12. The computer program product ofclaim 1, further comprising: communicating, between the trafficcontroller and a vehicle module, a lane position.
 13. The computerprogram product of claim 1, further comprising: constructing, by avehicle module, a fixed set of vehicles.
 14. The computer programproduct of claim 1, further comprising: determining, by a vehicle moduleon a vehicle, a speed of the vehicle for a temporal period.
 15. Thecomputer program product of claim 1, wherein the transportation vehicletraffic management occurs in an automated fashion without userintervention.
 16. The computer program product of claim 1, furthercomprising: metering use of the transportation vehicle trafficmanagement; and generating an invoice based on the metered use.
 17. Thecomputer program product of claim 1, wherein at least one of: theprogram instructions are stored in the computer readable storage mediumin a data processing system, and wherein the program instructions weredownloaded over a network from a remote data processing system; or theprogram instructions are stored in the computer readable storage mediumin a server data processing system, and wherein the program instructionsare downloaded over a network to the remote data processing system foruse in a second computer readable storage medium with the remote dataprocessing system.